Draft control



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March ,29%, 1927.

Patented Mar. 29, 1927.

UNITED STATES HORACE W. HEYMA'N, 0F lVLtBrIEIEMIO0])7 NEW JERSEY.

DRAFT CONTROL.

Application mea August 31, 1926. serial No.` 132,712.

It has been found desirable to provide a simple mechanism, forcontrolling a furnace, which can be located at a suitable place in thestructure to be heated and which will enable the furnace control devicesto be effectively operated when the temperature changes require.

Accordingly, an object of the present invention is to providea structurewhich will not only mount the temperature indicating means, but alsoserve as part of the means for manually controlling the furnace -draftsystem. This latter means is designed to be simple in operation andcomposed of but few parts, its simplicity of operation and constructionmaking it far more desirable than a cumbersome automatic system whichmay require frequent repairs. j

Reference will now be had to the accompanying drawings forming a parthereof for a more detailed description of the apparatus, wherein:

Figure l is a front elevation of one form of the invention.

Figure 2 is a side elevation, partly in section, of the device of Figurel, taken on the line 2-2 of Figure l.

Figure 3 is a plan view of the device of Figure l.

Figure 4i is a rear elevation of the invention showing a modified formof pull rod, and,

Figure 5 is a plan, partly in section, of the modified form of pull rod.

In the drawings, and particularly in Figures l, 2 and 3, a represents awoodenv block secured to a wall by screws b and supporting athermometer, shown at c. This thermometer may be of the usual form andwill not be described in detail here.

The rear face of the block is provided with two countersunk flats dwhich receive a metal plate e so that the latter is flush with the rearface of the block. This will be seen from Figures 2 and 3. Between flatsd, a

channel f is provided to receive the slide g,

permitting it to be retained by the plate e which is secured to theblock by screws e.

rIhe upper end of slide g is bent to form a handle g which. is graspedby the operator to move the slide to adesired position. Havingcalibrations on its front face, the slide may be moved to any desiredposition demanded by the temperature of the room,

r and by means of the following structure,

such movement is transmitted to the damper,

the armg2 is provided with a threaded eX- tension g". An arm z', havinga groove z" and a hole to receive the extension, is secured to the armg2, the taps g5 holding the arm, and the groove e" receiving end of g2to prevent e from turning.l Arm z' has athreaded extension vl and nut 2secures the draft regulating connection thereto. In this form, obstaclesin the wall which do not permit the chain to drop straight, areovercome. j v

Obviously, the material used may be varied, and `the specific featuresof design changed without departing from the scope of this invention assetforth in the appended claims.

What I claim is:

1. In a draft control, a base, means for securing it to a wall, amanually operated slide for controlling the draft'regulator of aheatingplant, an outwardly projecting arm at the top of the slide for manualoperation, an inwardly projecting arm at the bottom of the slide, meansto connect the last named arm to the draft control means of a heatingplant. a channel in the rear face of the base to receive the slide, anda countersunk plate secured to the rear face to slidably secure theslide to the base.

2. In a draft control, a base, means for securing it to a wall, amanually operated slide for controlling the draft regulator of a heatingplant, an outwardly projecting arm at the top of the slide for manualoperation, an inwardly projecting arm at the bottom of the slide, athreaded projection on the lower arm, a second arm having a hole toreceive the projection and a groove to receive the end of the lower arm,means to secure the second arm to the projection, and means to connectthe free end of the second arm to the draft control means.

3. As an article of manufacture, a draft control for a heating plantcomprising a i nient with the :su

base, means for seruring it to a Wall, a inanually operable slide forcontrolling` the draft regulator of the heating` plant, an outwardlyprojecting' arm at the top of the slide for manual operation, aninuardlj)T projecting arni at the bottoni of the Slide, means to connectthe last nained arm to the draft' control moans o'l the heating plant, aCliannel in tlie rear face of the base to receive the slide, a recess inthe channel, a leall spring in said reIl in trii'tional engagiei tomaintain the slide in any desired p nien, a counter-aunk plate Securedto the rear :tace of the base to retain the slide u'itli tbe channel,and marks on the slid-e to indicate tlie position oit the draftregulator.

4. As an article of manufacture, a draft control for a heatingy plantcomprisinga base, means lor securi- L it to a Wall, a Inanually operableslide for controlling the draft regulator of a heating plant, anoutwardlyv projecting arin at the top of the Slide for manual operation,an inwardly projecting arm at the bottom of the slide, a laterallj)7projecting' oset extension adapted to be attached to said last namedarin, ineane to con neet said extension to the draft control lne-ans ofthe heating; plant, a channel in the rear face oit tlie base to receivellie Slide, a recess in the channel, a leaf spring;l in said lrecesa inilfrictional engagement with ille slide to maintain the .slide in any d"'ed position, a countereunl plate secured to the rear face el" the baseto retain the slide with the channel. and inarlis on the slide toindicate the position of the draft regulator.

This specification signed this 27th day oit Augusta D. 1926.

HORACE lV. HEYMAI.

